Achievement of the best design for unequally spaced grounding grids

The configuration of grounding grids which are used to earth electrical substations could be equally or unequally spaced. Unequally spaced grids were introduced to improve the requirements of the grids such as grounding grid resistance (Rg), ground potential rise (GPR), maximum touch voltage (Et) an...

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Main Authors: El-Sayed M. El-Refaie, Said E. Elmasry, M.K. Abd Elrahman, Mohamed H. Abdo
Format: Article
Language:English
Published: Elsevier 2015-03-01
Series:Ain Shams Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447914001270
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author El-Sayed M. El-Refaie
Said E. Elmasry
M.K. Abd Elrahman
Mohamed H. Abdo
author_facet El-Sayed M. El-Refaie
Said E. Elmasry
M.K. Abd Elrahman
Mohamed H. Abdo
author_sort El-Sayed M. El-Refaie
collection DOAJ
description The configuration of grounding grids which are used to earth electrical substations could be equally or unequally spaced. Unequally spaced grids were introduced to improve the requirements of the grids such as grounding grid resistance (Rg), ground potential rise (GPR), maximum touch voltage (Et) and maximum step voltage (Es) values. Also, unequal spacing can reduce the cost of the grids and enhance the level of safety for people and equipments. In this paper two different approaches were used to determine the best possible configuration of grounding grid. These approaches based on sequential multiplicative and sequential power techniques.
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spelling doaj.art-41642645257f4a46b6b277a2454666942022-12-21T21:26:39ZengElsevierAin Shams Engineering Journal2090-44792015-03-016117117910.1016/j.asej.2014.09.013Achievement of the best design for unequally spaced grounding gridsEl-Sayed M. El-RefaieSaid E. ElmasryM.K. Abd ElrahmanMohamed H. AbdoThe configuration of grounding grids which are used to earth electrical substations could be equally or unequally spaced. Unequally spaced grids were introduced to improve the requirements of the grids such as grounding grid resistance (Rg), ground potential rise (GPR), maximum touch voltage (Et) and maximum step voltage (Es) values. Also, unequal spacing can reduce the cost of the grids and enhance the level of safety for people and equipments. In this paper two different approaches were used to determine the best possible configuration of grounding grid. These approaches based on sequential multiplicative and sequential power techniques.http://www.sciencedirect.com/science/article/pii/S2090447914001270Unequal spaceGrounding gridETAP
spellingShingle El-Sayed M. El-Refaie
Said E. Elmasry
M.K. Abd Elrahman
Mohamed H. Abdo
Achievement of the best design for unequally spaced grounding grids
Ain Shams Engineering Journal
Unequal space
Grounding grid
ETAP
title Achievement of the best design for unequally spaced grounding grids
title_full Achievement of the best design for unequally spaced grounding grids
title_fullStr Achievement of the best design for unequally spaced grounding grids
title_full_unstemmed Achievement of the best design for unequally spaced grounding grids
title_short Achievement of the best design for unequally spaced grounding grids
title_sort achievement of the best design for unequally spaced grounding grids
topic Unequal space
Grounding grid
ETAP
url http://www.sciencedirect.com/science/article/pii/S2090447914001270
work_keys_str_mv AT elsayedmelrefaie achievementofthebestdesignforunequallyspacedgroundinggrids
AT saideelmasry achievementofthebestdesignforunequallyspacedgroundinggrids
AT mkabdelrahman achievementofthebestdesignforunequallyspacedgroundinggrids
AT mohamedhabdo achievementofthebestdesignforunequallyspacedgroundinggrids